summaryrefslogtreecommitdiffstats
path: root/net/wireless/nl80211.c
diff options
context:
space:
mode:
Diffstat (limited to 'net/wireless/nl80211.c')
-rw-r--r--net/wireless/nl80211.c125
1 files changed, 107 insertions, 18 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 73a7f6d354c..53f044370cd 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -171,6 +171,7 @@ static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
[NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
[NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
[NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
+ [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
};
/* policy for the key attributes */
@@ -182,6 +183,14 @@ static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
[NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
[NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
[NL80211_KEY_TYPE] = { .type = NLA_U32 },
+ [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
+};
+
+/* policy for the key default flags */
+static const struct nla_policy
+nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
+ [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
+ [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
};
/* ifidx get helper */
@@ -314,6 +323,7 @@ struct key_parse {
int idx;
int type;
bool def, defmgmt;
+ bool def_uni, def_multi;
};
static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
@@ -327,6 +337,13 @@ static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
k->def = !!tb[NL80211_KEY_DEFAULT];
k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
+ if (k->def) {
+ k->def_uni = true;
+ k->def_multi = true;
+ }
+ if (k->defmgmt)
+ k->def_multi = true;
+
if (tb[NL80211_KEY_IDX])
k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
@@ -349,6 +366,19 @@ static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
return -EINVAL;
}
+ if (tb[NL80211_KEY_DEFAULT_TYPES]) {
+ struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
+ int err = nla_parse_nested(kdt,
+ NUM_NL80211_KEY_DEFAULT_TYPES - 1,
+ tb[NL80211_KEY_DEFAULT_TYPES],
+ nl80211_key_default_policy);
+ if (err)
+ return err;
+
+ k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
+ k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
+ }
+
return 0;
}
@@ -373,12 +403,32 @@ static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
+ if (k->def) {
+ k->def_uni = true;
+ k->def_multi = true;
+ }
+ if (k->defmgmt)
+ k->def_multi = true;
+
if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
return -EINVAL;
}
+ if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
+ struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
+ int err = nla_parse_nested(
+ kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
+ info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
+ nl80211_key_default_policy);
+ if (err)
+ return err;
+
+ k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
+ k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
+ }
+
return 0;
}
@@ -401,6 +451,11 @@ static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
if (k->def && k->defmgmt)
return -EINVAL;
+ if (k->defmgmt) {
+ if (k->def_uni || !k->def_multi)
+ return -EINVAL;
+ }
+
if (k->idx != -1) {
if (k->defmgmt) {
if (k->idx < 4 || k->idx > 5)
@@ -450,6 +505,8 @@ nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
goto error;
def = 1;
result->def = parse.idx;
+ if (!parse.def_uni || !parse.def_multi)
+ goto error;
} else if (parse.defmgmt)
goto error;
err = cfg80211_validate_key_settings(rdev, &parse.p,
@@ -1586,8 +1643,6 @@ static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
struct key_parse key;
int err;
struct net_device *dev = info->user_ptr[1];
- int (*func)(struct wiphy *wiphy, struct net_device *netdev,
- u8 key_index);
err = nl80211_parse_key(info, &key);
if (err)
@@ -1600,27 +1655,61 @@ static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
if (!key.def && !key.defmgmt)
return -EINVAL;
- if (key.def)
- func = rdev->ops->set_default_key;
- else
- func = rdev->ops->set_default_mgmt_key;
+ wdev_lock(dev->ieee80211_ptr);
- if (!func)
- return -EOPNOTSUPP;
+ if (key.def) {
+ if (!rdev->ops->set_default_key) {
+ err = -EOPNOTSUPP;
+ goto out;
+ }
- wdev_lock(dev->ieee80211_ptr);
- err = nl80211_key_allowed(dev->ieee80211_ptr);
- if (!err)
- err = func(&rdev->wiphy, dev, key.idx);
+ err = nl80211_key_allowed(dev->ieee80211_ptr);
+ if (err)
+ goto out;
+
+ if (!(rdev->wiphy.flags &
+ WIPHY_FLAG_SUPPORTS_SEPARATE_DEFAULT_KEYS)) {
+ if (!key.def_uni || !key.def_multi) {
+ err = -EOPNOTSUPP;
+ goto out;
+ }
+ }
+
+ err = rdev->ops->set_default_key(&rdev->wiphy, dev, key.idx,
+ key.def_uni, key.def_multi);
+
+ if (err)
+ goto out;
#ifdef CONFIG_CFG80211_WEXT
- if (!err) {
- if (func == rdev->ops->set_default_key)
- dev->ieee80211_ptr->wext.default_key = key.idx;
- else
- dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
- }
+ dev->ieee80211_ptr->wext.default_key = key.idx;
+#endif
+ } else {
+ if (key.def_uni || !key.def_multi) {
+ err = -EINVAL;
+ goto out;
+ }
+
+ if (!rdev->ops->set_default_mgmt_key) {
+ err = -EOPNOTSUPP;
+ goto out;
+ }
+
+ err = nl80211_key_allowed(dev->ieee80211_ptr);
+ if (err)
+ goto out;
+
+ err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
+ dev, key.idx);
+ if (err)
+ goto out;
+
+#ifdef CONFIG_CFG80211_WEXT
+ dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
#endif
+ }
+
+ out:
wdev_unlock(dev->ieee80211_ptr);
return err;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-23 13:03:59 +0000